Alma bedford



A. BEDFORD. STRAP ATTACHMENT.

No. 68,341. Patented Sept. 3, 1867.

@ya MAM @uiten tstrs atrnt @frn ALM-A BEDFORD, or ooLDWJATER, MICHIGAN.Letters .Patent No.'63,341, dated September 3, 1867; vemteolated August2.*5, 1867.

IMPROYED' STRAP-ATTAGHMEN T.

TO ALL WHOM ITv MAY CONCERN:

Be it known that'I, ALMA BEDFCRD, oi`=the Acity of Cold\vater,'in thecounty of Branch, and State of Michigan, have invented e. new andimproved Device for Attaching Straps, &c., to Leather, 010th, or othertextile-or pliable material, as heretofore briefly described'in a caveatwhich I filed in the United States Patent Oce on the 22d day of January,1866; vand I do hereby declare that the following is' a full and Vexactdescripi tion thereof, reference being had to the accompany-ingdrawings, in which Y i Figure 1 is a plan view of straps secured bymeans of my invention tothe edges of blankets,

Figure 2, a section through the line :v a: of iig. 1.

Similar letters indicatelke parts in all the gures'. i

The nature of my invention consists in the use of disks or 'plates of.'unequal diameters or dimensions, one or both of which are medeconcave, or with upturned edges, Vend which are to be rdrawn together bymeans of a central screw for the purpose of clamping between' them anypliable fabric or material, and aiiordi-n'g thereby a secure fasteningor' hold for astrnp or other device combined wthseid-pl'tes and screwThe strap may he combined with the plates and screw either -by causingthe screw to-pass through the strap or by securing the latter to eitherof tlie plates by rivets or`other devices.

I preffer to cast, stamp, or swage my fastening-clamps A A of metal,into n. circular concave-convex form, as illustrated in figs, 1 and 2 ofthe drawings, making them i'n -pairs of unequal diameters. A simpleaperture is formed centrally through one of the concave-convex plates ineach lpair, andthe other is provided with-a correspondingcentraLscrew-threaded aperture. Where leather straps are to be securedby menns of these clamping-plates, the rim of the'upper or larger plateA is recessed or cut away, as at c, figs. 1 and 2, ton depth atleastequal to the thickness of .the strap B, to allow itto pass freely underseid plate. The strapin such case is pierced with e. holenear its end toreceive the screw securing the ple-tes together, which thus serves alsoto hold the strap. In using the clamping-plates A A', thcy'are placedopposite eachother npon the two sides of the fabric E, with theirAconcave` sides inward, (ols'seen in ig. 2,) and a screw, -D, isinserted through the Simple aperture in the one plate, A, and passingthrough the fabricE and 4the hole in the strap B, is then screwed intothe'threaded aperture-of the opposite-plateiA. By this meansth'e twoplates are clamped tightly' together upon the cloth, and their vunequaldiameters cause them to bite the same, and thus take a'firm hohl thereofwithoutV injury thereto. y

If the strap or other device to be fastened uponthe fabric beyieiding'in its nature, .the edge of the upper plate need not be cntaway, (as 'at c, figs. 1 and 2,) as for a leather strap, but-may'bindthereon, and thus hold it without the aid of thescrew D, in theimanncrillustrated. Although I pefer to use circular plates,1they may be madeelliptical or rectangular, or otherwise polygonal in outline.

Havingv thus fully described my invention, I claim as new, and desire tosecureby 'Letters Patent- My improved fastening device, consisting of a.clamping-plate, mede concave or with anl upturned edge, combined bymeans of a. central, independent screw with la.n .opposite plate ofsmaller diameter or dimension, the whole arranged and operatingsubstantially in the manner and for the purpose herein set f orth.

' ALMA BEDFORD.

Vi tnesses z J. H. GRAY,

D. THOMPSON.

